A transgender middle-school student in Virginia was allegedly barred from entering locker rooms where her classmates were sheltering during an active-shooter drill. Instead, she was told to sit in a gym by herself. (Photo for illustration purposes only.)

A transgender middle-school student in Virginia was allegedly barred from entering locker rooms where her classmates were sheltering during an active-shooter drill. Instead, she was told to sit in a gym by

A transgender middle-school student in Virginia was allegedly barred from entering locker rooms where her classmates were sheltering during an active-shooter drill. Instead, she was told to sit in a gym by herself. (Photo for illustration purposes only.)

A transgender middle-school student in Virginia was allegedly barred from entering locker rooms where her classmates were sheltering during an active-shooter drill. Instead, she was told to sit in a gym by

Teachers at a Virginia middle school couldn't decide which bathroom or locker room to send a transgender student during an active-shooter drill, so she was forced to shelter in a gym away from her classmates, an LGBT rights group alleged.

The incident occurred last week at Stafford County Middle School, according to a post on the group Equality Stafford's Facebook page.

"When the drill began, a particular class of children took shelter in the bathroom/locker room nearest them as they were in PE," the post read. "One student was prevented from entering either the boys' or girls' locker room while the teachers discussed where she should go. The student was forced to watch the adults charged with her care, debate the safest place (for the other students) to have her shelter."

"Let me be clear," the post continued. "During an event that prepares children to survive an attack by actual assailants, she was treated as if she was so much of a danger to peers that she was left exposed and vulnerable."

Sherrie Johnson, a spokeswoman for Stafford County Public Schools, was asked by a reporter if the student should have been allowed in the girls' locker room because she identifies as female. Johnson did not answer the question, telling WUSA only that the school is reviewing protocols and procedures.

A group of concerned parents, friends and neighbors reportedly plan to protest at the a school board meeting Tuesday night.

A Facebook commenter who appeared to be a preschool or elementary teacher criticized the Stafford County teachers.

"The goal is how fast you move, not if you are in the right space," she wrote. "I had to evacuate 4-year-olds during a tornado and we all went into the women's bathroom. These kids should have been placed into the closest room, no debate needed. A murderer doesn't care (about) your gender, adopted or born with."

But the Equality Stafford poster wrote that the teachers should not be faulted as they were not given proper guidance in handling the situation.